Oil sight glass



FIG. 1 is a front perspective view of an oil sight glass, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a bottom perspective view thereof;

FIG. 9 is an exploded front perspective view thereof;

FIG. 10 is a part view of the portion ‘10’ in FIG. 9;

FIG. 11 is a part view of the portion ‘11’ in FIG. 9; and,

FIG. 12 is another front view thereof in an environment of use.

Oblique line shading in the figures depict a transparent surface and forms no part of the claimed design.

The dash broken lines in FIG. 9 show the locations from which the part views FIGS. 10 and 11 are taken and form no part of the claimed design.

The dash-dash broken lines in FIG. 12 depict environmental subject matter and form no part of the claimed design. 

CLAIM The ornamental design for an oil sight glass, as shown and described. 